My wife and I accidentally drained the battery on our '07 Saturn Vue (4cyl auto transmission) earlier today. AAA came and jump-started it, but ever since then we've had a check engine light and the Traction Control light on (TC button doesn't work to turn it off). The transmission has also felt really jerky when it shifts gears.

I plugged in my Fault reader when we got home, and here are the codes that come up:

I checked all of the fuses and relays in the engine compartment and they all appear fine. The only thing that makes sense would be that there's something wrong with the PCM, like it's getting a noisy signal or something. I tried resetting it by leaving the car "on" (not running) for 60 seconds per my Haynes manual, but it had no effect.

Is there something else I should check? Any clue what might be wrong? And could the battery drain/jump start this morning have caused all this trouble, or is that unrelated?

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Yesterday I checked the rest of the fuses and relays and nothing was wrong, so I tried clearing the fault codes, then draining the battery and letting it sit with the key in "run" for a minute before starting it again. No fault codes reappeared and the shifting felt normal.

I think what happened was, when the AAA guy jump started the car, the ECM suddenly had to make the engine run without knowing any of the default values for the sensors, so it was able to run but it was having a hard time controlling anything properly. I'm glad it wasn't anything more serious.

Thanks again for the great advice. I was all set to just drop it off at my mechanic and rent a car for a few days. I owe you!

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